Brake-shoe for railroad-cars.



www@ May 7, m.

` To all 'whom/1f may concern tion.

lill

till

'oi the United States, residing at Chicago,

narran sfraf .asV

rarnrvr 4onarca.

NEURETHER AND ONE-THIRD TD MARK FOUTE, BOTH BRAKE-siren ron l ,tl25,9lltl;

l Specication of Application filed August 19, 1910, Serial No. 577,9

lle it. known that l, IRA KINoAm, a citizen in the county of Cook and State of illinois.l have invented .certain new and useful' lmprovements in Brake-Shoes for Railroad- I Cars, of which the following lsfa specitica#I lily invention relates tobrahefshoes tor railroad cars and particularly for railroad locomotives and the object ot the invention is to provide means whereby the flange ol" a locomotive or carwheel :may be kept lubrior carolien, rnniuors.

RAILRGAZCARS. y

Letters Batent..

Patented May 7, 93.

Renewed April 11, ll. Serial Noil.

the brake shoe 7 tothe head. The 'interior `ace of the head 4 is concave and the shoe is longitudinally'- concave-convex, fitting olf course the curvature of the wheel.

The shoe proper 7 is of any usual or ordinary torni and as shown is provided at its upper en'dwith a hook-like portion 8 which is adapted to be received in the recess Vor socket and at its lower end is provided with a bolt 9, the head of which is lsunk in the face ot the brake shoeE and the end ot vwhich extends through the opening (i in the head and is held in place by means ot a cated, thus preventing vthe rapid cutting away of the flange when ruiming on curves, the wearing away of the rail and very much reducing the danger of de-railment, as it. isv the worn flanges ofthe car wheels and the worn rails that are apt to cause such derailrnen'ts, particularly at switches. n

The invention consists in its general features in a brake shoeformed lwith a pocket, the pocket opening upon the flange groove of the shoe and being 'filled with oil-soaked waste or other lubricant so that the lubricant in the pocket, will be applied to the inside tace of the flange ofthe wheel, thus. renderingthe inside tace of the flange oily and lubricating the surface which ordinarily comes in contactI with the rails ot a track particularly when the train'is going around a curve. The const-ant grinding of the flange particularly when the car is moving upon curves tends vto wear away the flange, destroy the usefulness of the wheel and also wear away therails, particularly at 'the switches. y

@ne form of myinventi'on is'shown in the accompanying drawings wherein: Figure lis a fragmentary side elevation ol a portion of the locomotive wheel and the brake head and brake shoe applied. thereto, inyimprovement in the brake shoe being shown in dottedlines. Fig; 2 is a transverse section on the line 2-2 of Fig. l. Fig. 3 is an. inside face View of the brake shoe.

Referring to these figures, 2 designates a car wheel ot any suitable character shown' asvthe wheel of a locomotive', this wheel bef ing formed with the usual flange 3. The" brake head 1l is ot any ordinary or usual con' f' struction and is shown as being formed with a socket 5 atits upper end and with a recessf 6 at its lower end, the socket and recess be ing provided for the purposeof attaching lCotter pin l0 or in any other suitable 1nanner. rllhe construction above described is that' common to a large variety of brake shoes and is not part of my invention.

My invention consists in providing the bra-ke shoe with a longitudinallvv extending pocket 1l which is formed by coring the brake shoe, this pocket being about three rEhe pocket is provided on its upper lend with la duct l2 which leads to the upper end of the brake shoe and may be provided with any suitable plug whereby the duct may he closed iiI desired. The pocket ll has a peculiar relation to the flange groove l?) which is iorined in the tace of the brake shoc to accomn'iodate the flange 3. As shown in Fig. 3 the pocket opens along its entire length upon the inside tacev ot' the llangc groove so that the waste or other suitable lubricantcarried within the pocket will come in Contact with the inside face ot the flange. The pocket in cross-section is grad; ually contracted toward its opening asshown inlligQB, so as to prevent the lubricant contained in .the pocket from being pulled out by any roughness in the tacc'ot the wheel llange. One wall or" thc pocket intersects the flange groove at a point slightl)v inward trom the tace of thc brake shoe, while the other side wall ot thc pocket intersects thefHa-ngife groove at a point approximately at the bottoni of the groove. as illustrated in Fig. The pocltet'is` -to be lled with v aste such as ordinarilyv used tor lubricating purposes or with otherlubricant such as grease. and il willbc obviousy that .'thelulnicant will contact with Vthe inner @face of the flange 3' and that thc, lubricant such as the oil absorbed by tbc waste will he inches long and .one and a baltinches square* ias distrilmtcd over the inner tace ot the lla'ngc. l

saniffpressure upon the oily Waste at all .ftimeswhether the brake shoe is at rest or in oper-ation, the pressuredepending upon the consistency of the Waste as packed in the pocket. y y Inthe ordinary running of the train the flange 3 will constantly Wipe against the o1lyf.wa ste contained in the pocket and the jinner'face of the flange vvill be constantly tio,

the train, and furthermore will reduce Wear ffof the fia-nge and rail'and prevent their be- '2 Vhile I have shown my invention as ap' 'ing laterally cutaway.

plied to' brake `shoeand rail ofan ordinary giorni, I do no t-` Wish to 'be limited to this form as4 itfis `vobvious that the invention *wWhat-Iclaimis: l l' A*llt concave-convex brake shoe l:for vehicle wheelsliaving a ian'ge receiving groove in the concave face thereof near one longitudi nal-edge of the shoe and'opening through tlie top and bottom of said shoe, there being lmight be'embofdied in other forms of brake` a longitudinally curved pocket forl'ued lu the body ofthe shoe at the rear of the groove and of less length than the latter, said pocket being disposed at an angle to one longitudin'al edge of the shoe and having its side walls unobstructed and converged in the direction of the flange receiving groove to forma contracted mouth opening through one side Wall of saidtlange receiving groove and terminating short of the other, there being a vertically disposed duct of less cross sectional diameter than the pocket opening through the top of the shoe in spaced rela- -tion to the grooved face thereof and communicating With` said pocket to permit the introduction of a lubricant, said duct being disposed in .vertical alinementwith and forming a continuation of the longitudinally curved rear wall of the pocket, and' a detachable plug seated in the upper end of the duc-t and forming a closure for the lat-` ter, that portion of the concave face of the shoe Ibetween the iiange receiving groove and the other longitudinal edgeof said shoe being of the same width as and adapted to b'ear` against the periphery of the wheel.

ln testimony whereof I aflix my signature in presence of two Witnesses.

IRA KINCAID. [Ls] Witnesses: t

MARK l. GRINER, MARK A. FoorE. 

